Key statistics
Satellite SL-11 R/B at a glance.
Uptime
20043
Days in orbit
Revolutions
≈ 13.0
Per day
Orbit
MEO
Medium Earth Orbit
Inclination
62.9
Latest
Satellite identification and parameters
Extended collection of information and parameters for SL-11 R/B.
Object identification
Identified? True
Debris? False
Object name: SL-11 R/B
International designator: 1970-089B
Object number (NORAD): 4597
Object ID (CCSDS): 4597
Country: COMMONWEALTH OF INDEPENDENT STATES (CIS)
Current information (Y/N): Y
RCS size: LARGE
Orbital parameters
Period: 111.155 minutes
Inclination: 62.9362 deg
SMA: 7657.941 km
Apoapsis: 2030.97 km
Periapsis: 528.642 km
RAAN: 245.8379 deg
Eccentricy: 0.09808952
Argument of periapsis: 36.4368 deg
Mean anomaly: 329.9477 deg
Mean motion: 12.95491972 rev/day
Mean motion (dot): 0.00000405 rev/day2
B* drag term: 0.00017462761 1/REarth
Two-line elements (TLE)
Creation date: Sept. 7, 2025, 3:09 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Sept. 6, 2025, 9:49 a.m. UTC
TLE line 0: 0 SL-11 R/B
TLE line 1: 1 04597U 70089B 25249.40930286 .00000405 00000-0 17463-3 0 9996
TLE line 2: 2 04597 62.9362 245.8379 0980895 36.4368 329.9477 12.95491972722913
Live tracking on map
Real-time ground track for satellite SL-11 R/B.
Associated space launch
The I2P satellites were the first soviet coorbital ASAT system.
SL-11 R/B was lifted into orbit during the mission ‘Tsiklon-2 | I2P 4’, on board a Tsiklon-2 space rocket.
The launch took place on Oct. 23, 1970, 4:42 a.m. from 90/20.
For more information about the launch, click the button.
Tsiklon-2 | I2P 4
Agency: N/A
Status: Launch Successful
Launch date: Oct. 23, 1970, 4:42 a.m. UTC
Rocket: Tsiklon-2
Launch pad: 90/20
Location: Baikonur Cosmodrome, Republic of Kazakhstan
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